U.S. Stock Indices Open Lower on May 21; Dow Down 0.27%, Nasdaq Down 0.5%

According to Jin10, U.S. stock indices opened lower on May 21, with the Dow Jones down 0.27%, the S&P 500 down 0.39%, and the Nasdaq down 0.5%.

Among notable movers, Microsoft (MSFT.O) rose 1.1% following reports that Anthropic is in discussions to use its AI chips. IBM (IBM.N) gained 3% after securing $1 billion in U.S. government funding to advance quantum computing development. NIO Inc. (NIO.N) climbed 5% on the back of first-quarter revenue growth of 112.2% year-over-year.